- "Sure, I've had some Johns in my time and they've all got their kinks, but I think Rupert beats all."
- ―Dusky Donovan[src]
Rupert is a Rapture citizen who frequently visited the prostitutes in Siren Alley. According to prostitute Dusky Donovan, he requested that she'd "splice up in the act." She declined since her boss, Daniel Wales, did not allow the prostitutes who worked for him to splice.